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Diffstat (limited to 'thirdparty/libwebsockets/roles/http/client')
-rw-r--r--thirdparty/libwebsockets/roles/http/client/client-handshake.c1284
-rw-r--r--thirdparty/libwebsockets/roles/http/client/client.c1243
2 files changed, 0 insertions, 2527 deletions
diff --git a/thirdparty/libwebsockets/roles/http/client/client-handshake.c b/thirdparty/libwebsockets/roles/http/client/client-handshake.c
deleted file mode 100644
index 0095c79a69..0000000000
--- a/thirdparty/libwebsockets/roles/http/client/client-handshake.c
+++ /dev/null
@@ -1,1284 +0,0 @@
-#include "core/private.h"
-
-static int
-lws_getaddrinfo46(struct lws *wsi, const char *ads, struct addrinfo **result)
-{
- struct addrinfo hints;
-
- memset(&hints, 0, sizeof(hints));
- *result = NULL;
-
-#ifdef LWS_WITH_IPV6
- if (wsi->ipv6) {
-
-#if !defined(__ANDROID__)
- hints.ai_family = AF_INET6;
- hints.ai_flags = AI_V4MAPPED;
-#endif
- } else
-#endif
- {
- hints.ai_family = PF_UNSPEC;
- hints.ai_socktype = SOCK_STREAM;
- }
-
- return getaddrinfo(ads, NULL, &hints, result);
-}
-
-struct lws *
-lws_client_connect_2(struct lws *wsi)
-{
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
- struct lws_context *context = wsi->context;
- struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
- const char *adsin;
- struct lws *wsi_piggyback = NULL;
- struct lws_pollfd pfd;
- ssize_t plen = 0;
-#endif
- struct addrinfo *result;
- const char *ads;
- sockaddr46 sa46;
- int n, port;
- const char *cce = "", *iface;
- const char *meth = NULL;
-#ifdef LWS_WITH_IPV6
- char ipv6only = lws_check_opt(wsi->vhost->options,
- LWS_SERVER_OPTION_IPV6_V6ONLY_MODIFY |
- LWS_SERVER_OPTION_IPV6_V6ONLY_VALUE);
-
-#if defined(__ANDROID__)
- ipv6only = 0;
-#endif
-#endif
-
- lwsl_client("%s: %p\n", __func__, wsi);
-
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
- if (!wsi->http.ah) {
- cce = "ah was NULL at cc2";
- lwsl_err("%s\n", cce);
- goto oom4;
- }
-
- /* we can only piggyback GET or POST */
-
- meth = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_METHOD);
- if (meth && strcmp(meth, "GET") && strcmp(meth, "POST"))
- goto create_new_conn;
-
- /* we only pipeline connections that said it was okay */
-
- if (!wsi->client_pipeline)
- goto create_new_conn;
-
- /*
- * let's take a look first and see if there are any already-active
- * client connections we can piggy-back on.
- */
-
- adsin = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS);
-
- lws_vhost_lock(wsi->vhost); /* ----------------------------------- { */
-
- lws_start_foreach_dll_safe(struct lws_dll_lws *, d, d1,
- wsi->vhost->dll_active_client_conns.next) {
- struct lws *w = lws_container_of(d, struct lws,
- dll_active_client_conns);
-
- lwsl_debug("%s: check %s %s %d %d\n", __func__, adsin,
- w->client_hostname_copy, wsi->c_port, w->c_port);
-
- if (w != wsi && w->client_hostname_copy &&
- !strcmp(adsin, w->client_hostname_copy) &&
-#if defined(LWS_WITH_TLS)
- (wsi->tls.use_ssl & LCCSCF_USE_SSL) ==
- (w->tls.use_ssl & LCCSCF_USE_SSL) &&
-#endif
- wsi->c_port == w->c_port) {
-
- /* someone else is already connected to the right guy */
-
- /* do we know for a fact pipelining won't fly? */
- if (w->keepalive_rejected) {
- lwsl_info("defeating pipelining due to no "
- "keepalive on server\n");
- lws_vhost_unlock(wsi->vhost); /* } ---------- */
- goto create_new_conn;
- }
-#if defined (LWS_WITH_HTTP2)
- /*
- * h2: in usable state already: just use it without
- * going through the queue
- */
- if (w->client_h2_alpn &&
- (lwsi_state(w) == LRS_H2_WAITING_TO_SEND_HEADERS ||
- lwsi_state(w) == LRS_ESTABLISHED)) {
-
- lwsl_info("%s: just join h2 directly\n",
- __func__);
-
- wsi->client_h2_alpn = 1;
- lws_wsi_h2_adopt(w, wsi);
- lws_vhost_unlock(wsi->vhost); /* } ---------- */
-
- return wsi;
- }
-#endif
-
- lwsl_info("applying %p to txn queue on %p (wsistate 0x%x)\n",
- wsi, w, w->wsistate);
- /*
- * ...let's add ourselves to his transaction queue...
- * we are adding ourselves at the HEAD
- */
- lws_dll_lws_add_front(&wsi->dll_client_transaction_queue,
- &w->dll_client_transaction_queue_head);
-
- /*
- * h1: pipeline our headers out on him,
- * and wait for our turn at client transaction_complete
- * to take over parsing the rx.
- */
-
- wsi_piggyback = w;
-
- lws_vhost_unlock(wsi->vhost); /* } ---------- */
- goto send_hs;
- }
-
- } lws_end_foreach_dll_safe(d, d1);
-
- lws_vhost_unlock(wsi->vhost); /* } ---------------------------------- */
-
-create_new_conn:
-#endif
-
- /*
- * clients who will create their own fresh connection keep a copy of
- * the hostname they originally connected to, in case other connections
- * want to use it too
- */
-
- if (!wsi->client_hostname_copy)
- wsi->client_hostname_copy =
- lws_strdup(lws_hdr_simple_ptr(wsi,
- _WSI_TOKEN_CLIENT_PEER_ADDRESS));
-
- /*
- * If we made our own connection, and we're doing a method that can take
- * a pipeline, we are an "active client connection".
- *
- * Add ourselves to the vhost list of those so that others can
- * piggyback on our transaction queue
- */
-
- if (meth && (!strcmp(meth, "GET") || !strcmp(meth, "POST")) &&
- lws_dll_is_null(&wsi->dll_client_transaction_queue) &&
- lws_dll_is_null(&wsi->dll_active_client_conns)) {
- lws_vhost_lock(wsi->vhost);
- lws_dll_lws_add_front(&wsi->dll_active_client_conns,
- &wsi->vhost->dll_active_client_conns);
- lws_vhost_unlock(wsi->vhost);
- }
-
- /*
- * start off allowing ipv6 on connection if vhost allows it
- */
- wsi->ipv6 = LWS_IPV6_ENABLED(wsi->vhost);
-
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-
- /* Decide what it is we need to connect to:
- *
- * Priority 1: connect to http proxy */
-
- if (wsi->vhost->http.http_proxy_port) {
- plen = sprintf((char *)pt->serv_buf,
- "CONNECT %s:%u HTTP/1.0\x0d\x0a"
- "User-agent: libwebsockets\x0d\x0a",
- lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS),
- wsi->c_port);
-
- if (wsi->vhost->proxy_basic_auth_token[0])
- plen += sprintf((char *)pt->serv_buf + plen,
- "Proxy-authorization: basic %s\x0d\x0a",
- wsi->vhost->proxy_basic_auth_token);
-
- plen += sprintf((char *)pt->serv_buf + plen, "\x0d\x0a");
- ads = wsi->vhost->http.http_proxy_address;
- port = wsi->vhost->http.http_proxy_port;
-#else
- if (0) {
-#endif
-
-#if defined(LWS_WITH_SOCKS5)
-
- /* Priority 2: Connect to SOCK5 Proxy */
-
- } else if (wsi->vhost->socks_proxy_port) {
- socks_generate_msg(wsi, SOCKS_MSG_GREETING, &plen);
- lwsl_client("Sending SOCKS Greeting\n");
- ads = wsi->vhost->socks_proxy_address;
- port = wsi->vhost->socks_proxy_port;
-#endif
- } else {
-
- /* Priority 3: Connect directly */
-
- ads = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS);
- port = wsi->c_port;
- }
-
- /*
- * prepare the actual connection
- * to whatever we decided to connect to
- */
-
- lwsl_info("%s: %p: address %s\n", __func__, wsi, ads);
-
- n = lws_getaddrinfo46(wsi, ads, &result);
-
-#ifdef LWS_WITH_IPV6
- if (wsi->ipv6) {
- struct sockaddr_in6 *sa6 =
- ((struct sockaddr_in6 *)result->ai_addr);
-
- if (n) {
- /* lws_getaddrinfo46 failed, there is no usable result */
- lwsl_notice("%s: lws_getaddrinfo46 failed %d\n",
- __func__, n);
- cce = "ipv6 lws_getaddrinfo46 failed";
- goto oom4;
- }
-
- memset(&sa46, 0, sizeof(sa46));
-
- sa46.sa6.sin6_family = AF_INET6;
- switch (result->ai_family) {
- case AF_INET:
- if (ipv6only)
- break;
- /* map IPv4 to IPv6 */
- bzero((char *)&sa46.sa6.sin6_addr,
- sizeof(sa46.sa6.sin6_addr));
- sa46.sa6.sin6_addr.s6_addr[10] = 0xff;
- sa46.sa6.sin6_addr.s6_addr[11] = 0xff;
- memcpy(&sa46.sa6.sin6_addr.s6_addr[12],
- &((struct sockaddr_in *)result->ai_addr)->sin_addr,
- sizeof(struct in_addr));
- lwsl_notice("uplevelling AF_INET to AF_INET6\n");
- break;
-
- case AF_INET6:
- memcpy(&sa46.sa6.sin6_addr, &sa6->sin6_addr,
- sizeof(struct in6_addr));
- sa46.sa6.sin6_scope_id = sa6->sin6_scope_id;
- sa46.sa6.sin6_flowinfo = sa6->sin6_flowinfo;
- break;
- default:
- lwsl_err("Unknown address family\n");
- freeaddrinfo(result);
- cce = "unknown address family";
- goto oom4;
- }
- } else
-#endif /* use ipv6 */
-
- /* use ipv4 */
- {
- void *p = NULL;
-
- if (!n) {
- struct addrinfo *res = result;
-
- /* pick the first AF_INET (IPv4) result */
-
- while (!p && res) {
- switch (res->ai_family) {
- case AF_INET:
- p = &((struct sockaddr_in *)res->ai_addr)->sin_addr;
- break;
- }
-
- res = res->ai_next;
- }
-#if defined(LWS_FALLBACK_GETHOSTBYNAME)
- } else if (n == EAI_SYSTEM) {
- struct hostent *host;
-
- lwsl_info("getaddrinfo (ipv4) failed, trying gethostbyname\n");
- host = gethostbyname(ads);
- if (host) {
- p = host->h_addr;
- } else {
- lwsl_err("gethostbyname failed\n");
- cce = "gethostbyname (ipv4) failed";
- goto oom4;
- }
-#endif
- } else {
- lwsl_err("getaddrinfo failed\n");
- cce = "getaddrinfo failed";
- goto oom4;
- }
-
- if (!p) {
- if (result)
- freeaddrinfo(result);
- lwsl_err("Couldn't identify address\n");
- cce = "unable to lookup address";
- goto oom4;
- }
-
- sa46.sa4.sin_family = AF_INET;
- sa46.sa4.sin_addr = *((struct in_addr *)p);
- bzero(&sa46.sa4.sin_zero, 8);
- }
-
- if (result)
- freeaddrinfo(result);
-
- /* now we decided on ipv4 or ipv6, set the port */
-
- if (!lws_socket_is_valid(wsi->desc.sockfd)) {
-
- if (wsi->context->event_loop_ops->check_client_connect_ok &&
- wsi->context->event_loop_ops->check_client_connect_ok(wsi)) {
- cce = "waiting for event loop watcher to close";
- goto oom4;
- }
-
-#ifdef LWS_WITH_IPV6
- if (wsi->ipv6)
- wsi->desc.sockfd = socket(AF_INET6, SOCK_STREAM, 0);
- else
-#endif
- wsi->desc.sockfd = socket(AF_INET, SOCK_STREAM, 0);
-
- if (!lws_socket_is_valid(wsi->desc.sockfd)) {
- lwsl_warn("Unable to open socket\n");
- cce = "unable to open socket";
- goto oom4;
- }
-
- if (lws_plat_set_socket_options(wsi->vhost, wsi->desc.sockfd)) {
- lwsl_err("Failed to set wsi socket options\n");
- compatible_close(wsi->desc.sockfd);
- cce = "set socket opts failed";
- goto oom4;
- }
-
- lwsi_set_state(wsi, LRS_WAITING_CONNECT);
-
- if (wsi->context->event_loop_ops->accept)
- wsi->context->event_loop_ops->accept(wsi);
-
- if (__insert_wsi_socket_into_fds(wsi->context, wsi)) {
- compatible_close(wsi->desc.sockfd);
- cce = "insert wsi failed";
- goto oom4;
- }
-
- lws_change_pollfd(wsi, 0, LWS_POLLIN);
-
- /*
- * past here, we can't simply free the structs as error
- * handling as oom4 does. We have to run the whole close flow.
- */
-
- if (!wsi->protocol)
- wsi->protocol = &wsi->vhost->protocols[0];
-
- wsi->protocol->callback(wsi, LWS_CALLBACK_WSI_CREATE,
- wsi->user_space, NULL, 0);
-
- lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_CONNECT_RESPONSE,
- AWAITING_TIMEOUT);
-
- iface = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_IFACE);
-
- if (iface) {
- n = lws_socket_bind(wsi->vhost, wsi->desc.sockfd, 0, iface);
- if (n < 0) {
- cce = "unable to bind socket";
- goto failed;
- }
- }
- }
-
-#ifdef LWS_WITH_IPV6
- if (wsi->ipv6) {
- sa46.sa6.sin6_port = htons(port);
- n = sizeof(struct sockaddr_in6);
- } else
-#endif
- {
- sa46.sa4.sin_port = htons(port);
- n = sizeof(struct sockaddr);
- }
-
- if (connect(wsi->desc.sockfd, (const struct sockaddr *)&sa46, n) == -1 ||
- LWS_ERRNO == LWS_EISCONN) {
- if (LWS_ERRNO == LWS_EALREADY ||
- LWS_ERRNO == LWS_EINPROGRESS ||
- LWS_ERRNO == LWS_EWOULDBLOCK
-#ifdef _WIN32
- || LWS_ERRNO == WSAEINVAL
-#endif
- ) {
- lwsl_client("nonblocking connect retry (errno = %d)\n",
- LWS_ERRNO);
-
- if (lws_plat_check_connection_error(wsi)) {
- cce = "socket connect failed";
- goto failed;
- }
-
- /*
- * must do specifically a POLLOUT poll to hear
- * about the connect completion
- */
- if (lws_change_pollfd(wsi, 0, LWS_POLLOUT)) {
- cce = "POLLOUT set failed";
- goto failed;
- }
-
- return wsi;
- }
-
- if (LWS_ERRNO != LWS_EISCONN) {
- lwsl_notice("Connect failed errno=%d\n", LWS_ERRNO);
- cce = "connect failed";
- goto failed;
- }
- }
-
- lwsl_client("connected\n");
-
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
- /* we are connected to server, or proxy */
-
- /* http proxy */
- if (wsi->vhost->http.http_proxy_port) {
-
- /*
- * OK from now on we talk via the proxy, so connect to that
- *
- * (will overwrite existing pointer,
- * leaving old string/frag there but unreferenced)
- */
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS,
- wsi->vhost->http.http_proxy_address))
- goto failed;
- wsi->c_port = wsi->vhost->http.http_proxy_port;
-
- n = send(wsi->desc.sockfd, (char *)pt->serv_buf, (int)plen,
- MSG_NOSIGNAL);
- if (n < 0) {
- lwsl_debug("ERROR writing to proxy socket\n");
- cce = "proxy write failed";
- goto failed;
- }
-
- lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_PROXY_RESPONSE,
- AWAITING_TIMEOUT);
-
- lwsi_set_state(wsi, LRS_WAITING_PROXY_REPLY);
-
- return wsi;
- }
-#endif
-#if defined(LWS_WITH_SOCKS5)
- /* socks proxy */
- else if (wsi->vhost->socks_proxy_port) {
- n = send(wsi->desc.sockfd, (char *)pt->serv_buf, plen,
- MSG_NOSIGNAL);
- if (n < 0) {
- lwsl_debug("ERROR writing socks greeting\n");
- cce = "socks write failed";
- goto failed;
- }
-
- lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_SOCKS_GREETING_REPLY,
- AWAITING_TIMEOUT);
-
- lwsi_set_state(wsi, LRS_WAITING_SOCKS_GREETING_REPLY);
-
- return wsi;
- }
-#endif
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-send_hs:
-
- if (wsi_piggyback &&
- !lws_dll_is_null(&wsi->dll_client_transaction_queue)) {
- /*
- * We are pipelining on an already-established connection...
- * we can skip tls establishment.
- */
-
- lwsi_set_state(wsi, LRS_H1C_ISSUE_HANDSHAKE2);
-
- /*
- * we can't send our headers directly, because they have to
- * be sent when the parent is writeable. The parent will check
- * for anybody on his client transaction queue that is in
- * LRS_H1C_ISSUE_HANDSHAKE2, and let them write.
- *
- * If we are trying to do this too early, before the master
- * connection has written his own headers, then it will just
- * wait in the queue until it's possible to send them.
- */
- lws_callback_on_writable(wsi_piggyback);
- lwsl_info("%s: wsi %p: waiting to send headers (parent state %x)\n",
- __func__, wsi, lwsi_state(wsi_piggyback));
- } else {
- lwsl_info("%s: wsi %p: client creating own connection\n",
- __func__, wsi);
-
- /* we are making our own connection */
- lwsi_set_state(wsi, LRS_H1C_ISSUE_HANDSHAKE);
-
- /*
- * provoke service to issue the handshake directly.
- *
- * we need to do it this way because in the proxy case, this is
- * the next state and executed only if and when we get a good
- * proxy response inside the state machine... but notice in
- * SSL case this may not have sent anything yet with 0 return,
- * and won't until many retries from main loop. To stop that
- * becoming endless, cover with a timeout.
- */
-
- lws_set_timeout(wsi, PENDING_TIMEOUT_SENT_CLIENT_HANDSHAKE,
- AWAITING_TIMEOUT);
-
- pfd.fd = wsi->desc.sockfd;
- pfd.events = LWS_POLLIN;
- pfd.revents = LWS_POLLIN;
-
- n = lws_service_fd(context, &pfd);
- if (n < 0) {
- cce = "first service failed";
- goto failed;
- }
- if (n) /* returns 1 on failure after closing wsi */
- return NULL;
- }
-#endif
- return wsi;
-
-oom4:
- if (lwsi_role_client(wsi) && lwsi_state_est(wsi)) {
- wsi->protocol->callback(wsi,
- LWS_CALLBACK_CLIENT_CONNECTION_ERROR,
- wsi->user_space, (void *)cce, strlen(cce));
- wsi->already_did_cce = 1;
- }
- /* take care that we might be inserted in fds already */
- if (wsi->position_in_fds_table != LWS_NO_FDS_POS)
- goto failed1;
- lws_remove_from_timeout_list(wsi);
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
- lws_header_table_detach(wsi, 0);
-#endif
- lws_client_stash_destroy(wsi);
- lws_free_set_NULL(wsi->client_hostname_copy);
- lws_free(wsi);
-
- return NULL;
-
-failed:
- wsi->protocol->callback(wsi,
- LWS_CALLBACK_CLIENT_CONNECTION_ERROR,
- wsi->user_space, (void *)cce, strlen(cce));
- wsi->already_did_cce = 1;
-failed1:
- lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS, "client_connect2");
-
- return NULL;
-}
-
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-
-/**
- * lws_client_reset() - retarget a connected wsi to start over with a new connection (ie, redirect)
- * this only works if still in HTTP, ie, not upgraded yet
- * wsi: connection to reset
- * address: network address of the new server
- * port: port to connect to
- * path: uri path to connect to on the new server
- * host: host header to send to the new server
- */
-LWS_VISIBLE struct lws *
-lws_client_reset(struct lws **pwsi, int ssl, const char *address, int port,
- const char *path, const char *host)
-{
- char origin[300] = "", protocol[300] = "", method[32] = "",
- iface[16] = "", alpn[32] = "", *p;
- struct lws *wsi = *pwsi;
-
- if (wsi->redirects == 3) {
- lwsl_err("%s: Too many redirects\n", __func__);
- return NULL;
- }
- wsi->redirects++;
-
- p = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_ORIGIN);
- if (p)
- lws_strncpy(origin, p, sizeof(origin));
-
- p = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS);
- if (p)
- lws_strncpy(protocol, p, sizeof(protocol));
-
- p = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_METHOD);
- if (p)
- lws_strncpy(method, p, sizeof(method));
-
- p = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_IFACE);
- if (p)
- lws_strncpy(iface, p, sizeof(iface));
-
- p = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_ALPN);
- if (p)
- lws_strncpy(alpn, p, sizeof(alpn));
-
- lwsl_info("redirect ads='%s', port=%d, path='%s', ssl = %d\n",
- address, port, path, ssl);
-
- /* close the connection by hand */
-
-#if defined(LWS_WITH_TLS)
- lws_ssl_close(wsi);
-#endif
-
- __remove_wsi_socket_from_fds(wsi);
-
- if (wsi->context->event_loop_ops->close_handle_manually)
- wsi->context->event_loop_ops->close_handle_manually(wsi);
- else
- compatible_close(wsi->desc.sockfd);
-
-#if defined(LWS_WITH_TLS)
- wsi->tls.use_ssl = ssl;
-#else
- if (ssl) {
- lwsl_err("%s: not configured for ssl\n", __func__);
- return NULL;
- }
-#endif
-
- wsi->desc.sockfd = LWS_SOCK_INVALID;
- lwsi_set_state(wsi, LRS_UNCONNECTED);
- wsi->protocol = NULL;
- wsi->pending_timeout = NO_PENDING_TIMEOUT;
- wsi->c_port = port;
- wsi->hdr_parsing_completed = 0;
- _lws_header_table_reset(wsi->http.ah);
-
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS, address))
- return NULL;
-
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_HOST, host))
- return NULL;
-
- if (origin[0])
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_ORIGIN,
- origin))
- return NULL;
- if (protocol[0])
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS,
- protocol))
- return NULL;
- if (method[0])
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_METHOD,
- method))
- return NULL;
-
- if (iface[0])
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_IFACE,
- iface))
- return NULL;
- if (alpn[0])
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_ALPN,
- alpn))
- return NULL;
-
- origin[0] = '/';
- strncpy(&origin[1], path, sizeof(origin) - 2);
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_URI, origin))
- return NULL;
-
- *pwsi = lws_client_connect_2(wsi);
-
- return *pwsi;
-}
-
-#ifdef LWS_WITH_HTTP_PROXY
-hubbub_error
-html_parser_cb(const hubbub_token *token, void *pw)
-{
- struct lws_rewrite *r = (struct lws_rewrite *)pw;
- char buf[1024], *start = buf + LWS_PRE, *p = start,
- *end = &buf[sizeof(buf) - 1];
- size_t i;
-
- switch (token->type) {
- case HUBBUB_TOKEN_DOCTYPE:
-
- p += lws_snprintf(p, end - p, "<!DOCTYPE %.*s %s ",
- (int) token->data.doctype.name.len,
- token->data.doctype.name.ptr,
- token->data.doctype.force_quirks ?
- "(force-quirks) " : "");
-
- if (token->data.doctype.public_missing)
- lwsl_debug("\tpublic: missing\n");
- else
- p += lws_snprintf(p, end - p, "PUBLIC \"%.*s\"\n",
- (int) token->data.doctype.public_id.len,
- token->data.doctype.public_id.ptr);
-
- if (token->data.doctype.system_missing)
- lwsl_debug("\tsystem: missing\n");
- else
- p += lws_snprintf(p, end - p, " \"%.*s\">\n",
- (int) token->data.doctype.system_id.len,
- token->data.doctype.system_id.ptr);
-
- break;
- case HUBBUB_TOKEN_START_TAG:
- p += lws_snprintf(p, end - p, "<%.*s", (int)token->data.tag.name.len,
- token->data.tag.name.ptr);
-
-/* (token->data.tag.self_closing) ?
- "(self-closing) " : "",
- (token->data.tag.n_attributes > 0) ?
- "attributes:" : "");
-*/
- for (i = 0; i < token->data.tag.n_attributes; i++) {
- if (!hstrcmp(&token->data.tag.attributes[i].name, "href", 4) ||
- !hstrcmp(&token->data.tag.attributes[i].name, "action", 6) ||
- !hstrcmp(&token->data.tag.attributes[i].name, "src", 3)) {
- const char *pp = (const char *)token->data.tag.attributes[i].value.ptr;
- int plen = (int) token->data.tag.attributes[i].value.len;
-
- if (strncmp(pp, "http:", 5) && strncmp(pp, "https:", 6)) {
-
- if (!hstrcmp(&token->data.tag.attributes[i].value,
- r->from, r->from_len)) {
- pp += r->from_len;
- plen -= r->from_len;
- }
- p += lws_snprintf(p, end - p, " %.*s=\"%s/%.*s\"",
- (int) token->data.tag.attributes[i].name.len,
- token->data.tag.attributes[i].name.ptr,
- r->to, plen, pp);
- continue;
- }
- }
-
- p += lws_snprintf(p, end - p, " %.*s=\"%.*s\"",
- (int) token->data.tag.attributes[i].name.len,
- token->data.tag.attributes[i].name.ptr,
- (int) token->data.tag.attributes[i].value.len,
- token->data.tag.attributes[i].value.ptr);
- }
- p += lws_snprintf(p, end - p, ">");
- break;
- case HUBBUB_TOKEN_END_TAG:
- p += lws_snprintf(p, end - p, "</%.*s", (int) token->data.tag.name.len,
- token->data.tag.name.ptr);
-/*
- (token->data.tag.self_closing) ?
- "(self-closing) " : "",
- (token->data.tag.n_attributes > 0) ?
- "attributes:" : "");
-*/
- for (i = 0; i < token->data.tag.n_attributes; i++) {
- p += lws_snprintf(p, end - p, " %.*s='%.*s'\n",
- (int) token->data.tag.attributes[i].name.len,
- token->data.tag.attributes[i].name.ptr,
- (int) token->data.tag.attributes[i].value.len,
- token->data.tag.attributes[i].value.ptr);
- }
- p += lws_snprintf(p, end - p, ">");
- break;
- case HUBBUB_TOKEN_COMMENT:
- p += lws_snprintf(p, end - p, "<!-- %.*s -->\n",
- (int) token->data.comment.len,
- token->data.comment.ptr);
- break;
- case HUBBUB_TOKEN_CHARACTER:
- if (token->data.character.len == 1) {
- if (*token->data.character.ptr == '<') {
- p += lws_snprintf(p, end - p, "&lt;");
- break;
- }
- if (*token->data.character.ptr == '>') {
- p += lws_snprintf(p, end - p, "&gt;");
- break;
- }
- if (*token->data.character.ptr == '&') {
- p += lws_snprintf(p, end - p, "&amp;");
- break;
- }
- }
-
- p += lws_snprintf(p, end - p, "%.*s", (int) token->data.character.len,
- token->data.character.ptr);
- break;
- case HUBBUB_TOKEN_EOF:
- p += lws_snprintf(p, end - p, "\n");
- break;
- }
-
- if (user_callback_handle_rxflow(r->wsi->protocol->callback,
- r->wsi, LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ,
- r->wsi->user_space, start, p - start))
- return -1;
-
- return HUBBUB_OK;
-}
-#endif
-
-#endif
-
-char *
-lws_strdup(const char *s)
-{
- char *d = lws_malloc(strlen(s) + 1, "strdup");
-
- if (d)
- strcpy(d, s);
-
- return d;
-}
-
-void
-lws_client_stash_destroy(struct lws *wsi)
-{
- if (!wsi || !wsi->stash)
- return;
-
- lws_free_set_NULL(wsi->stash->address);
- lws_free_set_NULL(wsi->stash->path);
- lws_free_set_NULL(wsi->stash->host);
- lws_free_set_NULL(wsi->stash->origin);
- lws_free_set_NULL(wsi->stash->protocol);
- lws_free_set_NULL(wsi->stash->method);
- lws_free_set_NULL(wsi->stash->iface);
- lws_free_set_NULL(wsi->stash->alpn);
-
- lws_free_set_NULL(wsi->stash);
-}
-
-LWS_VISIBLE struct lws *
-lws_client_connect_via_info(struct lws_client_connect_info *i)
-{
- struct lws *wsi;
- const struct lws_protocols *p;
- const char *local = i->protocol;
-
- if (i->context->requested_kill)
- return NULL;
-
- if (!i->context->protocol_init_done)
- lws_protocol_init(i->context);
- /*
- * If we have .local_protocol_name, use it to select the
- * local protocol handler to bind to. Otherwise use .protocol if
- * http[s].
- */
- if (i->local_protocol_name)
- local = i->local_protocol_name;
-
- wsi = lws_zalloc(sizeof(struct lws), "client wsi");
- if (wsi == NULL)
- goto bail;
-
- wsi->context = i->context;
-#if defined(LWS_ROLE_H1)
- /* assert the mode and union status (hdr) clearly */
- lws_role_transition(wsi, LWSIFR_CLIENT, LRS_UNCONNECTED, &role_ops_h1);
-#else
- lws_role_transition(wsi, LWSIFR_CLIENT, LRS_UNCONNECTED, &role_ops_raw_skt);
-#endif
- wsi->desc.sockfd = LWS_SOCK_INVALID;
-
- /* 1) fill up the wsi with stuff from the connect_info as far as it
- * can go. It's because not only is our connection async, we might
- * not even be able to get ahold of an ah at this point.
- */
-
- if (!i->method) /* ie, ws */
-#if defined(LWS_ROLE_WS)
- if (lws_create_client_ws_object(i, wsi))
- return NULL;
-#else
- return NULL;
-#endif
-
- wsi->user_space = NULL;
- wsi->pending_timeout = NO_PENDING_TIMEOUT;
- wsi->position_in_fds_table = LWS_NO_FDS_POS;
- wsi->c_port = i->port;
- wsi->vhost = i->vhost;
- if (!wsi->vhost)
- wsi->vhost = i->context->vhost_list;
-
- if (!wsi->vhost) {
- lwsl_err("At least one vhost in the context is required\n");
-
- goto bail;
- }
-
- wsi->protocol = &wsi->vhost->protocols[0];
- wsi->client_pipeline = !!(i->ssl_connection & LCCSCF_PIPELINE);
-
- /* reasonable place to start */
- lws_role_transition(wsi, LWSIFR_CLIENT, LRS_UNCONNECTED,
-#if defined(LWS_ROLE_H1)
- &role_ops_h1);
-#else
- &role_ops_raw_skt);
-#endif
-
- /*
- * 1) for http[s] connection, allow protocol selection by name
- * 2) for ws[s], if local_protocol_name given also use it for
- * local protocol binding... this defeats the server
- * protocol negotiation if so
- *
- * Otherwise leave at protocols[0]... the server will tell us
- * which protocol we are associated with since we can give it a
- * list.
- */
- if (/*(i->method || i->local_protocol_name) && */local) {
- lwsl_info("binding to %s\n", local);
- p = lws_vhost_name_to_protocol(wsi->vhost, local);
- if (p)
- wsi->protocol = p;
- }
-
- if (wsi && !wsi->user_space && i->userdata) {
- wsi->user_space_externally_allocated = 1;
- wsi->user_space = i->userdata;
- } else
- /* if we stay in http, we can assign the user space now,
- * otherwise do it after the protocol negotiated
- */
- if (i->method)
- if (lws_ensure_user_space(wsi))
- goto bail;
-
-#if defined(LWS_WITH_TLS)
- wsi->tls.use_ssl = i->ssl_connection;
-#else
- if (i->ssl_connection & LCCSCF_USE_SSL) {
- lwsl_err("libwebsockets not configured for ssl\n");
- goto bail;
- }
-#endif
-
- /* 2) stash the things from connect_info that we can't process without
- * an ah. Because if no ah, we will go on the ah waiting list and
- * process those things later (after the connect_info and maybe the
- * things pointed to have gone out of scope.
- */
-
- wsi->stash = lws_zalloc(sizeof(*wsi->stash), "client stash");
- if (!wsi->stash) {
- lwsl_err("%s: OOM\n", __func__);
- goto bail1;
- }
-
- wsi->stash->address = lws_strdup(i->address);
- wsi->stash->path = lws_strdup(i->path);
- wsi->stash->host = lws_strdup(i->host);
-
- if (!wsi->stash->address || !wsi->stash->path || !wsi->stash->host)
- goto bail1;
-
- if (i->origin) {
- wsi->stash->origin = lws_strdup(i->origin);
- if (!wsi->stash->origin)
- goto bail1;
- }
- if (i->protocol) {
- wsi->stash->protocol = lws_strdup(i->protocol);
- if (!wsi->stash->protocol)
- goto bail1;
- }
- if (i->method) {
- wsi->stash->method = lws_strdup(i->method);
- if (!wsi->stash->method)
- goto bail1;
- }
- if (i->iface) {
- wsi->stash->iface = lws_strdup(i->iface);
- if (!wsi->stash->iface)
- goto bail1;
- }
- /*
- * For ws, default to http/1.1 only. If i->alpn is set, defer to
- * whatever he has set in there (eg, "h2").
- *
- * The problem is he has to commit to h2 before he can find out if the
- * server has the SETTINGS for ws-over-h2 enabled; if not then ws is
- * not possible on that connection. So we only try it if he
- * assertively said to use h2 alpn.
- */
- if (!i->method && !i->alpn) {
- wsi->stash->alpn = lws_strdup("http/1.1");
- if (!wsi->stash->alpn)
- goto bail1;
- } else
- if (i->alpn) {
- wsi->stash->alpn = lws_strdup(i->alpn);
- if (!wsi->stash->alpn)
- goto bail1;
- }
-
- if (i->pwsi)
- *i->pwsi = wsi;
-
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
- /* if we went on the waiting list, no probs just return the wsi
- * when we get the ah, now or later, he will call
- * lws_client_connect_via_info2() below.
- */
- if (lws_header_table_attach(wsi, 0) < 0) {
- /*
- * if we failed here, the connection is already closed
- * and freed.
- */
- goto bail2;
- }
-
-#endif
-
- if (i->parent_wsi) {
- lwsl_info("%s: created child %p of parent %p\n", __func__,
- wsi, i->parent_wsi);
- wsi->parent = i->parent_wsi;
- wsi->sibling_list = i->parent_wsi->child_list;
- i->parent_wsi->child_list = wsi;
- }
-#ifdef LWS_WITH_HTTP_PROXY
- if (i->uri_replace_to)
- wsi->http.rw = lws_rewrite_create(wsi, html_parser_cb,
- i->uri_replace_from,
- i->uri_replace_to);
-#endif
-
- return wsi;
-
-bail1:
- lws_client_stash_destroy(wsi);
-
-bail:
- lws_free(wsi);
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-bail2:
-#endif
- if (i->pwsi)
- *i->pwsi = NULL;
-
- return NULL;
-}
-
-struct lws *
-lws_client_connect_via_info2(struct lws *wsi)
-{
- struct client_info_stash *stash = wsi->stash;
-
- if (!stash)
- return wsi;
-
- /*
- * we're not necessarily in a position to action these right away,
- * stash them... we only need during connect phase so into a temp
- * allocated stash
- */
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS,
- stash->address))
- goto bail1;
-
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_URI, stash->path))
- goto bail1;
-
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_HOST, stash->host))
- goto bail1;
-
- if (stash->origin)
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_ORIGIN,
- stash->origin))
- goto bail1;
- /*
- * this is a list of protocols we tell the server we're okay with
- * stash it for later when we compare server response with it
- */
- if (stash->protocol)
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS,
- stash->protocol))
- goto bail1;
- if (stash->method)
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_METHOD,
- stash->method))
- goto bail1;
- if (stash->iface)
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_IFACE,
- stash->iface))
- goto bail1;
- if (stash->alpn)
- if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_ALPN,
- stash->alpn))
- goto bail1;
-
-#if defined(LWS_WITH_SOCKS5)
- if (!wsi->vhost->socks_proxy_port)
- lws_client_stash_destroy(wsi);
-#endif
-
- wsi->context->count_wsi_allocated++;
-
- return lws_client_connect_2(wsi);
-
-bail1:
-#if defined(LWS_WITH_SOCKS5)
- if (!wsi->vhost->socks_proxy_port)
- lws_free_set_NULL(wsi->stash);
-#endif
-
- return NULL;
-}
-
-LWS_VISIBLE struct lws *
-lws_client_connect_extended(struct lws_context *context, const char *address,
- int port, int ssl_connection, const char *path,
- const char *host, const char *origin,
- const char *protocol, int ietf_version_or_minus_one,
- void *userdata)
-{
- struct lws_client_connect_info i;
-
- memset(&i, 0, sizeof(i));
-
- i.context = context;
- i.address = address;
- i.port = port;
- i.ssl_connection = ssl_connection;
- i.path = path;
- i.host = host;
- i.origin = origin;
- i.protocol = protocol;
- i.ietf_version_or_minus_one = ietf_version_or_minus_one;
- i.userdata = userdata;
-
- return lws_client_connect_via_info(&i);
-}
-
-LWS_VISIBLE struct lws *
-lws_client_connect(struct lws_context *context, const char *address,
- int port, int ssl_connection, const char *path,
- const char *host, const char *origin,
- const char *protocol, int ietf_version_or_minus_one)
-{
- struct lws_client_connect_info i;
-
- memset(&i, 0, sizeof(i));
-
- i.context = context;
- i.address = address;
- i.port = port;
- i.ssl_connection = ssl_connection;
- i.path = path;
- i.host = host;
- i.origin = origin;
- i.protocol = protocol;
- i.ietf_version_or_minus_one = ietf_version_or_minus_one;
- i.userdata = NULL;
-
- return lws_client_connect_via_info(&i);
-}
-
-#if defined(LWS_WITH_SOCKS5)
-void socks_generate_msg(struct lws *wsi, enum socks_msg_type type,
- ssize_t *msg_len)
-{
- struct lws_context *context = wsi->context;
- struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
- ssize_t len = 0, n, passwd_len;
- short net_num;
- char *p;
-
- switch (type) {
- case SOCKS_MSG_GREETING:
- /* socks version, version 5 only */
- pt->serv_buf[len++] = SOCKS_VERSION_5;
- /* number of methods */
- pt->serv_buf[len++] = 2;
- /* username password method */
- pt->serv_buf[len++] = SOCKS_AUTH_USERNAME_PASSWORD;
- /* no authentication method */
- pt->serv_buf[len++] = SOCKS_AUTH_NO_AUTH;
- break;
-
- case SOCKS_MSG_USERNAME_PASSWORD:
- n = strlen(wsi->vhost->socks_user);
- passwd_len = strlen(wsi->vhost->socks_password);
-
- /* the subnegotiation version */
- pt->serv_buf[len++] = SOCKS_SUBNEGOTIATION_VERSION_1;
- /* length of the user name */
- pt->serv_buf[len++] = n;
- /* user name */
- lws_strncpy((char *)&pt->serv_buf[len], wsi->vhost->socks_user,
- context->pt_serv_buf_size - len + 1);
- len += n;
- /* length of the password */
- pt->serv_buf[len++] = passwd_len;
- /* password */
- lws_strncpy((char *)&pt->serv_buf[len], wsi->vhost->socks_password,
- context->pt_serv_buf_size - len + 1);
- len += passwd_len;
- break;
-
- case SOCKS_MSG_CONNECT:
- p = (char*)&net_num;
-
- /* socks version */
- pt->serv_buf[len++] = SOCKS_VERSION_5;
- /* socks command */
- pt->serv_buf[len++] = SOCKS_COMMAND_CONNECT;
- /* reserved */
- pt->serv_buf[len++] = 0;
- /* address type */
- pt->serv_buf[len++] = SOCKS_ATYP_DOMAINNAME;
- /* skip length, we fill it in at the end */
- n = len++;
-
- /* the address we tell SOCKS proxy to connect to */
- lws_strncpy((char *)&(pt->serv_buf[len]), wsi->stash->address,
- context->pt_serv_buf_size - len + 1);
- len += strlen(wsi->stash->address);
- net_num = htons(wsi->c_port);
-
- /* the port we tell SOCKS proxy to connect to */
- pt->serv_buf[len++] = p[0];
- pt->serv_buf[len++] = p[1];
-
- /* the length of the address, excluding port */
- pt->serv_buf[n] = strlen(wsi->stash->address);
- break;
-
- default:
- return;
- }
-
- *msg_len = len;
-}
-#endif
diff --git a/thirdparty/libwebsockets/roles/http/client/client.c b/thirdparty/libwebsockets/roles/http/client/client.c
deleted file mode 100644
index 5645fa2b7a..0000000000
--- a/thirdparty/libwebsockets/roles/http/client/client.c
+++ /dev/null
@@ -1,1243 +0,0 @@
-/*
- * libwebsockets - lib/client/client.c
- *
- * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation:
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301 USA
- */
-
-#include "core/private.h"
-
-LWS_VISIBLE LWS_EXTERN void
-lws_client_http_body_pending(struct lws *wsi, int something_left_to_send)
-{
- wsi->client_http_body_pending = !!something_left_to_send;
-}
-
-/*
- * return self, or queued client wsi we are acting on behalf of
- *
- * That is the TAIL of the queue (new queue elements are added at the HEAD)
- */
-
-struct lws *
-lws_client_wsi_effective(struct lws *wsi)
-{
- struct lws_dll_lws *tail = NULL;
-
- if (!wsi->transaction_from_pipeline_queue ||
- !wsi->dll_client_transaction_queue_head.next)
- return wsi;
-
- lws_start_foreach_dll_safe(struct lws_dll_lws *, d, d1,
- wsi->dll_client_transaction_queue_head.next) {
- tail = d;
- } lws_end_foreach_dll_safe(d, d1);
-
- return lws_container_of(tail, struct lws,
- dll_client_transaction_queue);
-}
-
-/*
- * return self or the guy we are queued under
- *
- * REQUIRES VHOST LOCK HELD
- */
-
-static struct lws *
-_lws_client_wsi_master(struct lws *wsi)
-{
- struct lws *wsi_eff = wsi;
- struct lws_dll_lws *d;
-
- d = wsi->dll_client_transaction_queue.prev;
- while (d) {
- wsi_eff = lws_container_of(d, struct lws,
- dll_client_transaction_queue_head);
-
- d = d->prev;
- }
-
- return wsi_eff;
-}
-
-int
-lws_client_socket_service(struct lws *wsi, struct lws_pollfd *pollfd,
- struct lws *wsi_conn)
-{
- struct lws_context *context = wsi->context;
- struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
- char *p = (char *)&pt->serv_buf[0];
- struct lws *w;
-#if defined(LWS_WITH_TLS)
- char ebuf[128];
-#endif
- const char *cce = NULL;
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
- ssize_t len = 0;
- unsigned char c;
-#endif
- char *sb = p;
- int n = 0;
-#if defined(LWS_WITH_SOCKS5)
- int conn_mode = 0, pending_timeout = 0;
-#endif
-
- if ((pollfd->revents & LWS_POLLOUT) &&
- wsi->keepalive_active &&
- wsi->dll_client_transaction_queue_head.next) {
- struct lws *wfound = NULL;
-
- lwsl_debug("%s: pollout HANDSHAKE2\n", __func__);
-
- /*
- * We have a transaction queued that wants to pipeline.
- *
- * We have to allow it to send headers strictly in the order
- * that it was queued, ie, tail-first.
- */
- lws_vhost_lock(wsi->vhost);
- lws_start_foreach_dll_safe(struct lws_dll_lws *, d, d1,
- wsi->dll_client_transaction_queue_head.next) {
- struct lws *w = lws_container_of(d, struct lws,
- dll_client_transaction_queue);
-
- lwsl_debug("%s: %p states 0x%x\n", __func__, w, w->wsistate);
- if (lwsi_state(w) == LRS_H1C_ISSUE_HANDSHAKE2)
- wfound = w;
- } lws_end_foreach_dll_safe(d, d1);
-
- if (wfound) {
- /*
- * pollfd has the master sockfd in it... we
- * need to use that in HANDSHAKE2 to understand
- * which wsi to actually write on
- */
- lws_client_socket_service(wfound, pollfd, wsi);
- lws_callback_on_writable(wsi);
- } else
- lwsl_debug("%s: didn't find anything in txn q in HS2\n",
- __func__);
-
- lws_vhost_unlock(wsi->vhost);
-
- return 0;
- }
-
- switch (lwsi_state(wsi)) {
-
- case LRS_WAITING_CONNECT:
-
- /*
- * we are under PENDING_TIMEOUT_SENT_CLIENT_HANDSHAKE
- * timeout protection set in client-handshake.c
- */
-
- if (!lws_client_connect_2(wsi)) {
- /* closed */
- lwsl_client("closed\n");
- return -1;
- }
-
- /* either still pending connection, or changed mode */
- return 0;
-
-#if defined(LWS_WITH_SOCKS5)
- /* SOCKS Greeting Reply */
- case LRS_WAITING_SOCKS_GREETING_REPLY:
- case LRS_WAITING_SOCKS_AUTH_REPLY:
- case LRS_WAITING_SOCKS_CONNECT_REPLY:
-
- /* handle proxy hung up on us */
-
- if (pollfd->revents & LWS_POLLHUP) {
- lwsl_warn("SOCKS connection %p (fd=%d) dead\n",
- (void *)wsi, pollfd->fd);
- goto bail3;
- }
-
- n = recv(wsi->desc.sockfd, sb, context->pt_serv_buf_size, 0);
- if (n < 0) {
- if (LWS_ERRNO == LWS_EAGAIN) {
- lwsl_debug("SOCKS read EAGAIN, retrying\n");
- return 0;
- }
- lwsl_err("ERROR reading from SOCKS socket\n");
- goto bail3;
- }
-
- switch (lwsi_state(wsi)) {
-
- case LRS_WAITING_SOCKS_GREETING_REPLY:
- if (pt->serv_buf[0] != SOCKS_VERSION_5)
- goto socks_reply_fail;
-
- if (pt->serv_buf[1] == SOCKS_AUTH_NO_AUTH) {
- lwsl_client("SOCKS GR: No Auth Method\n");
- socks_generate_msg(wsi, SOCKS_MSG_CONNECT, &len);
- conn_mode = LRS_WAITING_SOCKS_CONNECT_REPLY;
- pending_timeout =
- PENDING_TIMEOUT_AWAITING_SOCKS_CONNECT_REPLY;
- goto socks_send;
- }
-
- if (pt->serv_buf[1] == SOCKS_AUTH_USERNAME_PASSWORD) {
- lwsl_client("SOCKS GR: User/Pw Method\n");
- socks_generate_msg(wsi,
- SOCKS_MSG_USERNAME_PASSWORD,
- &len);
- conn_mode = LRS_WAITING_SOCKS_AUTH_REPLY;
- pending_timeout =
- PENDING_TIMEOUT_AWAITING_SOCKS_AUTH_REPLY;
- goto socks_send;
- }
- goto socks_reply_fail;
-
- case LRS_WAITING_SOCKS_AUTH_REPLY:
- if (pt->serv_buf[0] != SOCKS_SUBNEGOTIATION_VERSION_1 ||
- pt->serv_buf[1] != SOCKS_SUBNEGOTIATION_STATUS_SUCCESS)
- goto socks_reply_fail;
-
- lwsl_client("SOCKS password OK, sending connect\n");
- socks_generate_msg(wsi, SOCKS_MSG_CONNECT, &len);
- conn_mode = LRS_WAITING_SOCKS_CONNECT_REPLY;
- pending_timeout =
- PENDING_TIMEOUT_AWAITING_SOCKS_CONNECT_REPLY;
-socks_send:
- n = send(wsi->desc.sockfd, (char *)pt->serv_buf, len,
- MSG_NOSIGNAL);
- if (n < 0) {
- lwsl_debug("ERROR writing to socks proxy\n");
- goto bail3;
- }
-
- lws_set_timeout(wsi, pending_timeout, AWAITING_TIMEOUT);
- lwsi_set_state(wsi, conn_mode);
- break;
-
-socks_reply_fail:
- lwsl_notice("socks reply: v%d, err %d\n",
- pt->serv_buf[0], pt->serv_buf[1]);
- goto bail3;
-
- case LRS_WAITING_SOCKS_CONNECT_REPLY:
- if (pt->serv_buf[0] != SOCKS_VERSION_5 ||
- pt->serv_buf[1] != SOCKS_REQUEST_REPLY_SUCCESS)
- goto socks_reply_fail;
-
- lwsl_client("socks connect OK\n");
-
- /* free stash since we are done with it */
- lws_client_stash_destroy(wsi);
- if (lws_hdr_simple_create(wsi,
- _WSI_TOKEN_CLIENT_PEER_ADDRESS,
- wsi->vhost->socks_proxy_address))
- goto bail3;
-
- wsi->c_port = wsi->vhost->socks_proxy_port;
-
- /* clear his proxy connection timeout */
- lws_set_timeout(wsi, NO_PENDING_TIMEOUT, 0);
- goto start_ws_handshake;
- default:
- break;
- }
- break;
-#endif
-
- case LRS_WAITING_PROXY_REPLY:
-
- /* handle proxy hung up on us */
-
- if (pollfd->revents & LWS_POLLHUP) {
-
- lwsl_warn("Proxy connection %p (fd=%d) dead\n",
- (void *)wsi, pollfd->fd);
-
- goto bail3;
- }
-
- n = recv(wsi->desc.sockfd, sb, context->pt_serv_buf_size, 0);
- if (n < 0) {
- if (LWS_ERRNO == LWS_EAGAIN) {
- lwsl_debug("Proxy read EAGAIN... retrying\n");
- return 0;
- }
- lwsl_err("ERROR reading from proxy socket\n");
- goto bail3;
- }
-
- pt->serv_buf[13] = '\0';
- if (strcmp(sb, "HTTP/1.0 200 ") &&
- strcmp(sb, "HTTP/1.1 200 ")) {
- lwsl_err("ERROR proxy: %s\n", sb);
- goto bail3;
- }
-
- /* clear his proxy connection timeout */
-
- lws_set_timeout(wsi, NO_PENDING_TIMEOUT, 0);
-
- /* fallthru */
-
- case LRS_H1C_ISSUE_HANDSHAKE:
-
- /*
- * we are under PENDING_TIMEOUT_SENT_CLIENT_HANDSHAKE
- * timeout protection set in client-handshake.c
- *
- * take care of our lws_callback_on_writable
- * happening at a time when there's no real connection yet
- */
-#if defined(LWS_WITH_SOCKS5)
-start_ws_handshake:
-#endif
- if (lws_change_pollfd(wsi, LWS_POLLOUT, 0))
- return -1;
-
-#if defined(LWS_WITH_TLS)
- /* we can retry this... just cook the SSL BIO the first time */
-
- if ((wsi->tls.use_ssl & LCCSCF_USE_SSL) && !wsi->tls.ssl &&
- lws_ssl_client_bio_create(wsi) < 0) {
- cce = "bio_create failed";
- goto bail3;
- }
-
- if (wsi->tls.use_ssl & LCCSCF_USE_SSL) {
- n = lws_ssl_client_connect1(wsi);
- if (!n)
- return 0;
- if (n < 0) {
- cce = "lws_ssl_client_connect1 failed";
- goto bail3;
- }
- } else
- wsi->tls.ssl = NULL;
-
- /* fallthru */
-
- case LRS_WAITING_SSL:
-
- if (wsi->tls.use_ssl & LCCSCF_USE_SSL) {
- n = lws_ssl_client_connect2(wsi, ebuf, sizeof(ebuf));
- if (!n)
- return 0;
- if (n < 0) {
- cce = ebuf;
- goto bail3;
- }
- } else
- wsi->tls.ssl = NULL;
-#endif
-#if defined (LWS_WITH_HTTP2)
- if (wsi->client_h2_alpn) {
- /*
- * We connected to the server and set up tls, and
- * negotiated "h2".
- *
- * So this is it, we are an h2 master client connection
- * now, not an h1 client connection.
- */
- lws_tls_server_conn_alpn(wsi);
-
- /* send the H2 preface to legitimize the connection */
- if (lws_h2_issue_preface(wsi)) {
- cce = "error sending h2 preface";
- goto bail3;
- }
-
- break;
- }
-#endif
- lwsi_set_state(wsi, LRS_H1C_ISSUE_HANDSHAKE2);
- lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_CLIENT_HS_SEND,
- context->timeout_secs);
-
- /* fallthru */
-
- case LRS_H1C_ISSUE_HANDSHAKE2:
- p = lws_generate_client_handshake(wsi, p);
- if (p == NULL) {
- if (wsi->role_ops == &role_ops_raw_skt ||
- wsi->role_ops == &role_ops_raw_file)
- return 0;
-
- lwsl_err("Failed to generate handshake for client\n");
- lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS, "chs");
- return 0;
- }
-
- /* send our request to the server */
- lws_latency_pre(context, wsi);
-
- w = _lws_client_wsi_master(wsi);
- lwsl_info("%s: HANDSHAKE2: %p: sending headers on %p (wsistate 0x%x 0x%x)\n",
- __func__, wsi, w, wsi->wsistate, w->wsistate);
-
- n = lws_ssl_capable_write(w, (unsigned char *)sb, (int)(p - sb));
- lws_latency(context, wsi, "send lws_issue_raw", n,
- n == p - sb);
- switch (n) {
- case LWS_SSL_CAPABLE_ERROR:
- lwsl_debug("ERROR writing to client socket\n");
- lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS, "cws");
- return 0;
- case LWS_SSL_CAPABLE_MORE_SERVICE:
- lws_callback_on_writable(wsi);
- break;
- }
-
- if (wsi->client_http_body_pending) {
- lwsi_set_state(wsi, LRS_ISSUE_HTTP_BODY);
- lws_set_timeout(wsi,
- PENDING_TIMEOUT_CLIENT_ISSUE_PAYLOAD,
- context->timeout_secs);
- /* user code must ask for writable callback */
- break;
- }
-
- lwsi_set_state(wsi, LRS_WAITING_SERVER_REPLY);
- wsi->hdr_parsing_completed = 0;
-
- if (lwsi_state(w) == LRS_IDLING) {
- lwsi_set_state(w, LRS_WAITING_SERVER_REPLY);
- w->hdr_parsing_completed = 0;
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
- w->http.ah->parser_state = WSI_TOKEN_NAME_PART;
- w->http.ah->lextable_pos = 0;
- /* If we're (re)starting on headers, need other implied init */
- wsi->http.ah->ues = URIES_IDLE;
-#endif
- }
-
- lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_SERVER_RESPONSE,
- wsi->context->timeout_secs);
-
- lws_callback_on_writable(w);
-
- goto client_http_body_sent;
-
- case LRS_ISSUE_HTTP_BODY:
- if (wsi->client_http_body_pending) {
- //lws_set_timeout(wsi,
- // PENDING_TIMEOUT_CLIENT_ISSUE_PAYLOAD,
- // context->timeout_secs);
- /* user code must ask for writable callback */
- break;
- }
-client_http_body_sent:
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
- /* prepare ourselves to do the parsing */
- wsi->http.ah->parser_state = WSI_TOKEN_NAME_PART;
- wsi->http.ah->lextable_pos = 0;
-#endif
- lwsi_set_state(wsi, LRS_WAITING_SERVER_REPLY);
- lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_SERVER_RESPONSE,
- context->timeout_secs);
- break;
-
- case LRS_WAITING_SERVER_REPLY:
- /*
- * handle server hanging up on us...
- * but if there is POLLIN waiting, handle that first
- */
- if ((pollfd->revents & (LWS_POLLIN | LWS_POLLHUP)) ==
- LWS_POLLHUP) {
-
- lwsl_debug("Server connection %p (fd=%d) dead\n",
- (void *)wsi, pollfd->fd);
- cce = "Peer hung up";
- goto bail3;
- }
-
- if (!(pollfd->revents & LWS_POLLIN))
- break;
-
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
- /* interpret the server response
- *
- * HTTP/1.1 101 Switching Protocols
- * Upgrade: websocket
- * Connection: Upgrade
- * Sec-WebSocket-Accept: me89jWimTRKTWwrS3aRrL53YZSo=
- * Sec-WebSocket-Nonce: AQIDBAUGBwgJCgsMDQ4PEC==
- * Sec-WebSocket-Protocol: chat
- *
- * we have to take some care here to only take from the
- * socket bytewise. The browser may (and has been seen to
- * in the case that onopen() performs websocket traffic)
- * coalesce both handshake response and websocket traffic
- * in one packet, since at that point the connection is
- * definitively ready from browser pov.
- */
- len = 1;
- while (wsi->http.ah->parser_state != WSI_PARSING_COMPLETE &&
- len > 0) {
- int plen = 1;
-
- n = lws_ssl_capable_read(wsi, &c, 1);
- lws_latency(context, wsi, "send lws_issue_raw", n,
- n == 1);
- switch (n) {
- case 0:
- case LWS_SSL_CAPABLE_ERROR:
- cce = "read failed";
- goto bail3;
- case LWS_SSL_CAPABLE_MORE_SERVICE:
- return 0;
- }
-
- if (lws_parse(wsi, &c, &plen)) {
- lwsl_warn("problems parsing header\n");
- goto bail3;
- }
- }
-
- /*
- * hs may also be coming in multiple packets, there is a 5-sec
- * libwebsocket timeout still active here too, so if parsing did
- * not complete just wait for next packet coming in this state
- */
- if (wsi->http.ah->parser_state != WSI_PARSING_COMPLETE)
- break;
-
-#endif
-
- /*
- * otherwise deal with the handshake. If there's any
- * packet traffic already arrived we'll trigger poll() again
- * right away and deal with it that way
- */
- return lws_client_interpret_server_handshake(wsi);
-
-bail3:
- lwsl_info("closing conn at LWS_CONNMODE...SERVER_REPLY\n");
- if (cce)
- lwsl_info("reason: %s\n", cce);
- wsi->protocol->callback(wsi,
- LWS_CALLBACK_CLIENT_CONNECTION_ERROR,
- wsi->user_space, (void *)cce, cce ? strlen(cce) : 0);
- wsi->already_did_cce = 1;
- lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS, "cbail3");
- return -1;
-
- default:
- break;
- }
-
- return 0;
-}
-
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-
-int LWS_WARN_UNUSED_RESULT
-lws_http_transaction_completed_client(struct lws *wsi)
-{
- struct lws *wsi_eff = lws_client_wsi_effective(wsi);
-
- lwsl_info("%s: wsi: %p, wsi_eff: %p\n", __func__, wsi, wsi_eff);
-
- if (user_callback_handle_rxflow(wsi_eff->protocol->callback,
- wsi_eff, LWS_CALLBACK_COMPLETED_CLIENT_HTTP,
- wsi_eff->user_space, NULL, 0)) {
- lwsl_debug("%s: Completed call returned nonzero (role 0x%x)\n",
- __func__, lwsi_role(wsi_eff));
- return -1;
- }
-
- /*
- * Are we constitutionally capable of having a queue, ie, we are on
- * the "active client connections" list?
- *
- * If not, that's it for us.
- */
-
- if (lws_dll_is_null(&wsi->dll_active_client_conns))
- return -1;
-
- /* if this was a queued guy, close him and remove from queue */
-
- if (wsi->transaction_from_pipeline_queue) {
- lwsl_debug("closing queued wsi %p\n", wsi_eff);
- /* so the close doesn't trigger a CCE */
- wsi_eff->already_did_cce = 1;
- __lws_close_free_wsi(wsi_eff,
- LWS_CLOSE_STATUS_CLIENT_TRANSACTION_DONE,
- "queued client done");
- }
-
- _lws_header_table_reset(wsi->http.ah);
-
- /* after the first one, they can only be coming from the queue */
- wsi->transaction_from_pipeline_queue = 1;
-
- wsi->http.rx_content_length = 0;
- wsi->hdr_parsing_completed = 0;
-
- /* is there a new tail after removing that one? */
- wsi_eff = lws_client_wsi_effective(wsi);
-
- /*
- * Do we have something pipelined waiting?
- * it's OK if he hasn't managed to send his headers yet... he's next
- * in line to do that...
- */
- if (wsi_eff == wsi) {
- /*
- * Nothing pipelined... we should hang around a bit
- * in case something turns up...
- */
- lwsl_info("%s: nothing pipelined waiting\n", __func__);
- lwsi_set_state(wsi, LRS_IDLING);
-
- lws_set_timeout(wsi, PENDING_TIMEOUT_CLIENT_CONN_IDLE, 5);
-
- return 0;
- }
-
- /*
- * H1: we can serialize the queued guys into the same ah
- * H2: everybody needs their own ah until their own STREAM_END
- */
-
- /* otherwise set ourselves up ready to go again */
- lwsi_set_state(wsi, LRS_WAITING_SERVER_REPLY);
-
- wsi->http.ah->parser_state = WSI_TOKEN_NAME_PART;
- wsi->http.ah->lextable_pos = 0;
-
- lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_SERVER_RESPONSE,
- wsi->context->timeout_secs);
-
- /* If we're (re)starting on headers, need other implied init */
- wsi->http.ah->ues = URIES_IDLE;
-
- lwsl_info("%s: %p: new queued transaction as %p\n", __func__, wsi, wsi_eff);
- lws_callback_on_writable(wsi);
-
- return 0;
-}
-
-LWS_VISIBLE LWS_EXTERN unsigned int
-lws_http_client_http_response(struct lws *_wsi)
-{
- struct lws *wsi;
- unsigned int resp;
-
- if (_wsi->http.ah && _wsi->http.ah->http_response)
- return _wsi->http.ah->http_response;
-
- lws_vhost_lock(_wsi->vhost);
- wsi = _lws_client_wsi_master(_wsi);
- resp = wsi->http.ah->http_response;
- lws_vhost_unlock(_wsi->vhost);
-
- return resp;
-}
-#endif
-#if defined(LWS_PLAT_OPTEE)
-char *
-strrchr(const char *s, int c)
-{
- char *hit = NULL;
-
- while (*s)
- if (*(s++) == (char)c)
- hit = (char *)s - 1;
-
- return hit;
-}
-
-#define atoll atoi
-#endif
-
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-int
-lws_client_interpret_server_handshake(struct lws *wsi)
-{
- int n, port = 0, ssl = 0;
- int close_reason = LWS_CLOSE_STATUS_PROTOCOL_ERR;
- const char *prot, *ads = NULL, *path, *cce = NULL;
- struct allocated_headers *ah = NULL;
- struct lws *w = lws_client_wsi_effective(wsi);
- char *p, *q;
- char new_path[300];
-
- lws_client_stash_destroy(wsi);
-
- ah = wsi->http.ah;
- if (!wsi->do_ws) {
- /* we are being an http client...
- */
-#if defined(LWS_ROLE_H2)
- if (wsi->client_h2_alpn || wsi->client_h2_substream) {
- lwsl_debug("%s: %p: transitioning to h2 client\n", __func__, wsi);
- lws_role_transition(wsi, LWSIFR_CLIENT,
- LRS_ESTABLISHED, &role_ops_h2);
- } else
-#endif
- {
-#if defined(LWS_ROLE_H1)
- {
- lwsl_debug("%s: %p: transitioning to h1 client\n", __func__, wsi);
- lws_role_transition(wsi, LWSIFR_CLIENT,
- LRS_ESTABLISHED, &role_ops_h1);
- }
-#else
- return -1;
-#endif
- }
-
- wsi->http.ah = ah;
- ah->http_response = 0;
- }
-
- /*
- * well, what the server sent looked reasonable for syntax.
- * Now let's confirm it sent all the necessary headers
- *
- * http (non-ws) client will expect something like this
- *
- * HTTP/1.0.200
- * server:.libwebsockets
- * content-type:.text/html
- * content-length:.17703
- * set-cookie:.test=LWS_1456736240_336776_COOKIE;Max-Age=360000
- */
-
- wsi->http.connection_type = HTTP_CONNECTION_KEEP_ALIVE;
- if (!wsi->client_h2_substream) {
- p = lws_hdr_simple_ptr(wsi, WSI_TOKEN_HTTP);
- if (wsi->do_ws && !p) {
- lwsl_info("no URI\n");
- cce = "HS: URI missing";
- goto bail3;
- }
- if (!p) {
- p = lws_hdr_simple_ptr(wsi, WSI_TOKEN_HTTP1_0);
- wsi->http.connection_type = HTTP_CONNECTION_CLOSE;
- }
- if (!p) {
- cce = "HS: URI missing";
- lwsl_info("no URI\n");
- goto bail3;
- }
- } else {
- p = lws_hdr_simple_ptr(wsi, WSI_TOKEN_HTTP_COLON_STATUS);
- if (!p) {
- cce = "HS: :status missing";
- lwsl_info("no status\n");
- goto bail3;
- }
- }
- n = atoi(p);
- if (ah)
- ah->http_response = n;
-
- if (n == 301 || n == 302 || n == 303 || n == 307 || n == 308) {
- p = lws_hdr_simple_ptr(wsi, WSI_TOKEN_HTTP_LOCATION);
- if (!p) {
- cce = "HS: Redirect code but no Location";
- goto bail3;
- }
-
- /* Relative reference absolute path */
- if (p[0] == '/') {
-#if defined(LWS_WITH_TLS)
- ssl = wsi->tls.use_ssl & LCCSCF_USE_SSL;
-#endif
- ads = lws_hdr_simple_ptr(wsi,
- _WSI_TOKEN_CLIENT_PEER_ADDRESS);
- port = wsi->c_port;
- /* +1 as lws_client_reset expects leading / omitted */
- path = p + 1;
- }
- /* Absolute (Full) URI */
- else if (strchr(p, ':')) {
- if (lws_parse_uri(p, &prot, &ads, &port, &path)) {
- cce = "HS: URI did not parse";
- goto bail3;
- }
-
- if (!strcmp(prot, "wss") || !strcmp(prot, "https"))
- ssl = 1;
- }
- /* Relative reference relative path */
- else {
- /* This doesn't try to calculate an absolute path,
- * that will be left to the server */
-#if defined(LWS_WITH_TLS)
- ssl = wsi->tls.use_ssl & LCCSCF_USE_SSL;
-#endif
- ads = lws_hdr_simple_ptr(wsi,
- _WSI_TOKEN_CLIENT_PEER_ADDRESS);
- port = wsi->c_port;
- /* +1 as lws_client_reset expects leading / omitted */
- path = new_path + 1;
- lws_strncpy(new_path, lws_hdr_simple_ptr(wsi,
- _WSI_TOKEN_CLIENT_URI), sizeof(new_path));
- q = strrchr(new_path, '/');
- if (q)
- lws_strncpy(q + 1, p, sizeof(new_path) -
- (q - new_path) - 1);
- else
- path = p;
- }
-
-#if defined(LWS_WITH_TLS)
- if ((wsi->tls.use_ssl & LCCSCF_USE_SSL) && !ssl) {
- cce = "HS: Redirect attempted SSL downgrade";
- goto bail3;
- }
-#endif
-
- if (!lws_client_reset(&wsi, ssl, ads, port, path, ads)) {
- /* there are two ways to fail out with NULL return...
- * simple, early problem where the wsi is intact, or
- * we went through with the reconnect attempt and the
- * wsi is already closed. In the latter case, the wsi
- * has beet set to NULL additionally.
- */
- lwsl_err("Redirect failed\n");
- cce = "HS: Redirect failed";
- if (wsi)
- goto bail3;
-
- return 1;
- }
- return 0;
- }
-
- if (!wsi->do_ws) {
-
- /* if h1 KA is allowed, enable the queued pipeline guys */
-
- if (!wsi->client_h2_alpn && !wsi->client_h2_substream && w == wsi) { /* ie, coming to this for the first time */
- if (wsi->http.connection_type == HTTP_CONNECTION_KEEP_ALIVE)
- wsi->keepalive_active = 1;
- else {
- /*
- * Ugh... now the main http connection has seen
- * both sides, we learn the server doesn't
- * support keepalive.
- *
- * That means any guys queued on us are going
- * to have to be restarted from connect2 with
- * their own connections.
- */
-
- /*
- * stick around telling any new guys they can't
- * pipeline to this server
- */
- wsi->keepalive_rejected = 1;
-
- lws_vhost_lock(wsi->vhost);
- lws_start_foreach_dll_safe(struct lws_dll_lws *, d, d1,
- wsi->dll_client_transaction_queue_head.next) {
- struct lws *ww = lws_container_of(d, struct lws,
- dll_client_transaction_queue);
-
- /* remove him from our queue */
- lws_dll_lws_remove(&ww->dll_client_transaction_queue);
- /* give up on pipelining */
- ww->client_pipeline = 0;
-
- /* go back to "trying to connect" state */
- lws_role_transition(ww, LWSIFR_CLIENT,
- LRS_UNCONNECTED,
-#if defined(LWS_ROLE_H1)
- &role_ops_h1);
-#else
-#if defined (LWS_ROLE_H2)
- &role_ops_h2);
-#else
- &role_ops_raw);
-#endif
-#endif
- ww->user_space = NULL;
- } lws_end_foreach_dll_safe(d, d1);
- lws_vhost_unlock(wsi->vhost);
- }
- }
-
-#ifdef LWS_WITH_HTTP_PROXY
- wsi->http.perform_rewrite = 0;
- if (lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_CONTENT_TYPE)) {
- if (!strncmp(lws_hdr_simple_ptr(wsi,
- WSI_TOKEN_HTTP_CONTENT_TYPE),
- "text/html", 9))
- wsi->http.perform_rewrite = 1;
- }
-#endif
-
- /* allocate the per-connection user memory (if any) */
- if (lws_ensure_user_space(wsi)) {
- lwsl_err("Problem allocating wsi user mem\n");
- cce = "HS: OOM";
- goto bail2;
- }
-
- /* he may choose to send us stuff in chunked transfer-coding */
- wsi->chunked = 0;
- wsi->chunk_remaining = 0; /* ie, next thing is chunk size */
- if (lws_hdr_total_length(wsi,
- WSI_TOKEN_HTTP_TRANSFER_ENCODING)) {
- wsi->chunked = !strcmp(lws_hdr_simple_ptr(wsi,
- WSI_TOKEN_HTTP_TRANSFER_ENCODING),
- "chunked");
- /* first thing is hex, after payload there is crlf */
- wsi->chunk_parser = ELCP_HEX;
- }
-
- if (lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_CONTENT_LENGTH)) {
- wsi->http.rx_content_length =
- atoll(lws_hdr_simple_ptr(wsi,
- WSI_TOKEN_HTTP_CONTENT_LENGTH));
- lwsl_info("%s: incoming content length %llu\n",
- __func__, (unsigned long long)
- wsi->http.rx_content_length);
- wsi->http.rx_content_remain =
- wsi->http.rx_content_length;
- } else /* can't do 1.1 without a content length or chunked */
- if (!wsi->chunked)
- wsi->http.connection_type =
- HTTP_CONNECTION_CLOSE;
-
- /*
- * we seem to be good to go, give client last chance to check
- * headers and OK it
- */
- if (w->protocol->callback(w,
- LWS_CALLBACK_CLIENT_FILTER_PRE_ESTABLISH,
- w->user_space, NULL, 0)) {
-
- cce = "HS: disallowed by client filter";
- goto bail2;
- }
-
- /* clear his proxy connection timeout */
- lws_set_timeout(wsi, NO_PENDING_TIMEOUT, 0);
-
- wsi->rxflow_change_to = LWS_RXFLOW_ALLOW;
-
- /* call him back to inform him he is up */
- if (w->protocol->callback(w,
- LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP,
- w->user_space, NULL, 0)) {
- cce = "HS: disallowed at ESTABLISHED";
- goto bail3;
- }
-
- /*
- * for pipelining, master needs to keep his ah... guys who
- * queued on him can drop it now though.
- */
-
- if (w != wsi)
- /* free up parsing allocations for queued guy */
- lws_header_table_detach(w, 0);
-
- lwsl_info("%s: client connection up\n", __func__);
-
- return 0;
- }
-
-#if defined(LWS_ROLE_WS)
- switch (lws_client_ws_upgrade(wsi, &cce)) {
- case 2:
- goto bail2;
- case 3:
- goto bail3;
- }
-
- return 0;
-#endif
-
-bail3:
- close_reason = LWS_CLOSE_STATUS_NOSTATUS;
-
-bail2:
- if (wsi->protocol) {
- n = 0;
- if (cce)
- n = (int)strlen(cce);
- w->protocol->callback(w,
- LWS_CALLBACK_CLIENT_CONNECTION_ERROR,
- w->user_space, (void *)cce,
- (unsigned int)n);
- }
- wsi->already_did_cce = 1;
-
- lwsl_info("closing connection due to bail2 connection error\n");
-
- /* closing will free up his parsing allocations */
- lws_close_free_wsi(wsi, close_reason, "c hs interp");
-
- return 1;
-}
-#endif
-
-char *
-lws_generate_client_handshake(struct lws *wsi, char *pkt)
-{
- char *p = pkt;
- const char *meth;
- const char *pp = lws_hdr_simple_ptr(wsi,
- _WSI_TOKEN_CLIENT_SENT_PROTOCOLS);
-
- meth = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_METHOD);
- if (!meth) {
- meth = "GET";
- wsi->do_ws = 1;
- } else {
- wsi->do_ws = 0;
- }
-
- if (!strcmp(meth, "RAW")) {
- lws_set_timeout(wsi, NO_PENDING_TIMEOUT, 0);
- lwsl_notice("client transition to raw\n");
-
- if (pp) {
- const struct lws_protocols *pr;
-
- pr = lws_vhost_name_to_protocol(wsi->vhost, pp);
-
- if (!pr) {
- lwsl_err("protocol %s not enabled on vhost\n",
- pp);
- return NULL;
- }
-
- lws_bind_protocol(wsi, pr);
- }
-
- if ((wsi->protocol->callback)(wsi, LWS_CALLBACK_RAW_ADOPT,
- wsi->user_space, NULL, 0))
- return NULL;
-
- lws_role_transition(wsi, 0, LRS_ESTABLISHED, &role_ops_raw_skt);
- lws_header_table_detach(wsi, 1);
-
- return NULL;
- }
-
- /*
- * 04 example client handshake
- *
- * GET /chat HTTP/1.1
- * Host: server.example.com
- * Upgrade: websocket
- * Connection: Upgrade
- * Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==
- * Sec-WebSocket-Origin: http://example.com
- * Sec-WebSocket-Protocol: chat, superchat
- * Sec-WebSocket-Version: 4
- */
-
- p += sprintf(p, "%s %s HTTP/1.1\x0d\x0a", meth,
- lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_URI));
-
- p += sprintf(p, "Pragma: no-cache\x0d\x0a"
- "Cache-Control: no-cache\x0d\x0a");
-
- p += sprintf(p, "Host: %s\x0d\x0a",
- lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_HOST));
-
- if (lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_ORIGIN)) {
- if (lws_check_opt(wsi->context->options,
- LWS_SERVER_OPTION_JUST_USE_RAW_ORIGIN))
- p += sprintf(p, "Origin: %s\x0d\x0a",
- lws_hdr_simple_ptr(wsi,
- _WSI_TOKEN_CLIENT_ORIGIN));
- else
- p += sprintf(p, "Origin: http://%s\x0d\x0a",
- lws_hdr_simple_ptr(wsi,
- _WSI_TOKEN_CLIENT_ORIGIN));
- }
-#if defined(LWS_ROLE_WS)
- if (wsi->do_ws)
- p = lws_generate_client_ws_handshake(wsi, p);
-#endif
-
- /* give userland a chance to append, eg, cookies */
-
- if (wsi->protocol->callback(wsi,
- LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER,
- wsi->user_space, &p,
- (pkt + wsi->context->pt_serv_buf_size) - p - 12))
- return NULL;
-
- p += sprintf(p, "\x0d\x0a");
-
- return p;
-}
-
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-
-LWS_VISIBLE int
-lws_http_client_read(struct lws *wsi, char **buf, int *len)
-{
- int rlen, n;
-
- rlen = lws_ssl_capable_read(wsi, (unsigned char *)*buf, *len);
- *len = 0;
-
- // lwsl_notice("%s: rlen %d\n", __func__, rlen);
-
- /* allow the source to signal he has data again next time */
- lws_change_pollfd(wsi, 0, LWS_POLLIN);
-
- if (rlen == LWS_SSL_CAPABLE_ERROR) {
- lwsl_notice("%s: SSL capable error\n", __func__);
- return -1;
- }
-
- if (rlen == 0)
- return -1;
-
- if (rlen < 0)
- return 0;
-
- *len = rlen;
- wsi->client_rx_avail = 0;
-
- /*
- * server may insist on transfer-encoding: chunked,
- * so http client must deal with it
- */
-spin_chunks:
- while (wsi->chunked && (wsi->chunk_parser != ELCP_CONTENT) && *len) {
- switch (wsi->chunk_parser) {
- case ELCP_HEX:
- if ((*buf)[0] == '\x0d') {
- wsi->chunk_parser = ELCP_CR;
- break;
- }
- n = char_to_hex((*buf)[0]);
- if (n < 0) {
- lwsl_debug("chunking failure\n");
- return -1;
- }
- wsi->chunk_remaining <<= 4;
- wsi->chunk_remaining |= n;
- break;
- case ELCP_CR:
- if ((*buf)[0] != '\x0a') {
- lwsl_debug("chunking failure\n");
- return -1;
- }
- wsi->chunk_parser = ELCP_CONTENT;
- lwsl_info("chunk %d\n", wsi->chunk_remaining);
- if (wsi->chunk_remaining)
- break;
- lwsl_info("final chunk\n");
- goto completed;
-
- case ELCP_CONTENT:
- break;
-
- case ELCP_POST_CR:
- if ((*buf)[0] != '\x0d') {
- lwsl_debug("chunking failure\n");
-
- return -1;
- }
-
- wsi->chunk_parser = ELCP_POST_LF;
- break;
-
- case ELCP_POST_LF:
- if ((*buf)[0] != '\x0a')
- return -1;
-
- wsi->chunk_parser = ELCP_HEX;
- wsi->chunk_remaining = 0;
- break;
- }
- (*buf)++;
- (*len)--;
- }
-
- if (wsi->chunked && !wsi->chunk_remaining)
- return 0;
-
- if (wsi->http.rx_content_remain &&
- wsi->http.rx_content_remain < (unsigned int)*len)
- n = (int)wsi->http.rx_content_remain;
- else
- n = *len;
-
- if (wsi->chunked && wsi->chunk_remaining &&
- wsi->chunk_remaining < n)
- n = wsi->chunk_remaining;
-
-#ifdef LWS_WITH_HTTP_PROXY
- /* hubbub */
- if (wsi->http.perform_rewrite)
- lws_rewrite_parse(wsi->http.rw, (unsigned char *)*buf, n);
- else
-#endif
- {
- struct lws *wsi_eff = lws_client_wsi_effective(wsi);
-
- if (user_callback_handle_rxflow(wsi_eff->protocol->callback,
- wsi_eff, LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ,
- wsi_eff->user_space, *buf, n)) {
- lwsl_debug("%s: RECEIVE_CLIENT_HTTP_READ returned -1\n",
- __func__);
-
- return -1;
- }
- }
-
- if (wsi->chunked && wsi->chunk_remaining) {
- (*buf) += n;
- wsi->chunk_remaining -= n;
- *len -= n;
- }
-
- if (wsi->chunked && !wsi->chunk_remaining)
- wsi->chunk_parser = ELCP_POST_CR;
-
- if (wsi->chunked && *len)
- goto spin_chunks;
-
- if (wsi->chunked)
- return 0;
-
- /* if we know the content length, decrement the content remaining */
- if (wsi->http.rx_content_length > 0)
- wsi->http.rx_content_remain -= n;
-
- // lwsl_notice("rx_content_remain %lld, rx_content_length %lld\n",
- // wsi->http.rx_content_remain, wsi->http.rx_content_length);
-
- if (wsi->http.rx_content_remain || !wsi->http.rx_content_length)
- return 0;
-
-completed:
-
- if (lws_http_transaction_completed_client(wsi)) {
- lwsl_notice("%s: transaction completed says -1\n", __func__);
- return -1;
- }
-
- return 0;
-}
-
-#endif